Inventários biológicos são importantes ferramentas para o conhecimento da biodiversidade e auxiliam no entendimento das alterações provenientes de processos antrópicos ou naturais. Inventários de comunidades de abelhas são especialmente relevantes e ainda escassos em ambiente de restinga na região sul do Estado de Santa Catarina. Nosso objetivo foi analisar a comunidade de abelhas em área de restinga arbórea no município de Araranguá, extremo sul catarinense.
The dispersion process consists of the removal of the diaspores from the proximities of the parent plants and transport to places suitable for germination and establishment. It is much more than a simple exchange of benefits between frugivorous animals and plants, but rather an early stage of a complex, critical and very important cycle for plant populations. The deposition of seeds of each plant species in different micro sites, a process known as seed shadow, has a great influence on the spatial distribution and population dynamics of the plant communities, and can help to maintain diversity in the forests. Among the pioneer species found in the Atlantic Forest is Myrsine coriacea, which besides being an important source of fauna food, helps in the healing processes of clearings. This study aims to identify the species of birds that consume the fruits of M. coriacea in a natural regeneration area, as well as to evaluate the fate of the seeds through the seed shade. The study was carried out in a natural regeneration area of the Serra Furada State Park, south of Santa Catarina. Frugivory by birds was evaluated between October of 2015 and January of 2017, totalling 77 hours of observation. Fruiting phenology was monitored from September 2015 to January 2017, in 15 individuals, using the Activity Index. To evaluate the seed shadow, an area of 4.05 hectares was delimited, where 51 seed collectors were installed. The spatial distribution of the individuals and the seed shadow were evaluated by the Morisita Index. Twenty-two bird species were recorded consuming fruits, and Elaenia spp., Turdus amaurochalinus, Vireo chivi and Zonotrichia capensis were the most frequent. T. amaurochalinus also consumed more fruits per visit, being considered as potential disperser of capororoca seeds. The green fruits appeared in almost all the months of observation, indicating a non-seasonal phenological event, while the mature fruits in turn, peaked in the warmer months. The Morisita Index revealed an aggregated spatial distribution, as well as seed shade. Future studies involving seed treatment and seed deposition sites after consumption of M. coriacea are necessary to identify whether the high frequencies and consumption of the highest number of fruits per visit actually indicate an effective disperser or not. The aggregate dispersion pattern reflects the importance of natural perches in the regeneration process of natural areas.
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